Recent content by Gravity2014

I think we've well covered this one and have an understanding, thank you all who helped me)) I've been to the museum of unworkable devices before, its fascinating)) The question that you've helped me with is a part of my invention, it was wether to include a rebound mechanism (e.g the cylinder)...

Thank you)) to take it one stage furthur , I just times by the distance the force is used over and divide by time for the power? So I get 300Nm x 0.20M /1s = 60 watts?)

So 3 bar =300,000 N/m^2 (1 bar = 100,000N/m^2) * 0.00026500 m^3 (1Litre = 0.0010000 m^2) = 300Nm ?)))

No offence taken, I didn't mention it could be a flow rate of 1 litre per second at 1 bar, hence the possible power conversion. For now I am just trying to find the energy content if contained and not flowing.The actual question I'm trying to solve from this is 3 bar pressure, 0.265 Litres per...

Ok, is it calculated in bar ? And it the answer in Watts?) Thanks, I am having trouble finding it anywhere.

Hi can anyone point me in the direction, or tell me how you can calculate the energy content of air at a given volume and pressure? Let's say 1 bar and 1 litre. Also is there a calculation for working out the energy available in that figure to perform work? Thank you.

Thank you, everyone!

That makes sense, thank you for your time! So increasing the light bulbs would slow the generator, meaning more weight needs adding.If you didn't add the weight, then more time is taken for the drop,meaning power is lower but energy conversion is the same.

Thanks, yes, I didn't want to get into P.M ! I just wanted to understand the principles involved.Thats a big help, thank you. If I understand correctly,the greater the resistance (e.g motor load),the slower the drop.So increasing the weight would only increase the resistance, not the speed.

Thanks for the quick simple reply:-) in the case that the weight drops quickly and the motor doesn't stop turning during compression?)Thanks again:-)

Hi all, I'm not a Physicist, but, I had an idea I wanted to put to bed. If you drop a weight on a rope that turns a generator as it falls, the mgh calculation gives you the force that could be converted to electricity,subject to frictional losses etc. Ignoring getting it back up again, if you...